Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1989-09-06
1991-05-07
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
209588, G01N 904
Patent
active
050139061
ABSTRACT:
Fish sex discrimination equipment and method comprising an automatic supplying unit, a light projection and reception detection unit, a discrimination control unit, a discharge unit, and a first conveyor and a second conveyor, and also comprising the steps of automatically supplying fish to be discriminated, transmitting light to a genital gland area of the fish, scanning the light, discriminating the sex of the fish based on the quantity of light tramsmitted, for example, a mean value or integrated value, and discharging the fish through the first or second conveyor which corresponds to the sex of the fish.
REFERENCES:
patent: 3859522 (1975-01-01), Cuthbert
patent: 4051952 (1977-10-01), Hauptmann et al.
patent: 4244475 (1981-01-01), Green
Kato Osamu
Koike Yusuke
Matsunami Keisuke
Miyakawa Tatsuo
Sekiya Naoyuki
Fujitsu Automation Limited
Nelms David C.
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